doctrine / orm

     *

     * @return self

     */

    public function select($select = null)

    {

        $this->_type = self::SELECT;

        if (empty($select)) {

            return $this;

        }

        $selects = is_array($select) ? $select : func_get_args();

        return $this->add('select', new Expr\Select($selects), false);

    }

    /**

     * Adds a DISTINCT flag to this query.

     *

     * @return self

     */

    public function addSelect($select = null)

    {

        $this->_type = self::SELECT;

        if (empty($select)) {

            return $this;

        }

        $selects = is_array($select) ? $select : func_get_args();

        return $this->add('select', new Expr\Select($selects), true);

    }

    /**

     * Turns the query being built into a bulk delete query that ranges over